package com.rwx.springboot02;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.stereotype.Component;
import org.springframework.util.MultiValueMap;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
//@Order(-1)
public class AuthorizeFilter implements GlobalFilter, Ordered {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {


        ServerHttpRequest request = exchange.getRequest();
        MultiValueMap<String, String> params =
                request.getQueryParams();
        String auth = params.getFirst("authorization");
        if("admin".equals(auth)){
            return chain.filter(exchange);
        }

        exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);

        return exchange.getResponse().setComplete();
    }

    @Override
    public int getOrder() {
        return -1;
    }
}
